The Role of EV Parking Lots for Supporting the Distribution System Operation Considering EV Uncertainties

Due to the dramatic increase in the penetration of the Electric Vehicle Parking Lots (EVPLs) in future, there will be a crucial challenge in the operation of the distribution systems. In this regard, the potential of the EVPLs for acting as a flexible load can be employed besides their capability to support the system with positive or negative reactive power if they are equipped with the required power electronic facilities. Our results show that EVPLs can modify their charging schedule to provide positive or negative reactive power support to improve the system condition in terms of congestion and voltage to let for deploy the cheaper generation sources that result in a decrease in total system cost. In this regard, EVPLs’ location has a very important impact on the optimal operation of the system and the amount of benefit from their active and reactive power support.